package com.my.behaviourtype.interpreter;

import java.util.HashMap;

public class AddExpression extends SymbolExpression {

	public AddExpression(Expression _left, Expression _right) {

		super(_left, _right);

	}

	// 把左右两个表达式运算的结果加起来

	public int interpreter(HashMap<String, Integer> var) {

		return super.left.interpreter(var) + super.right.interpreter(var);

	}

}